Casting of metals.



A. L. J. QUENEAU. CASTING 0F METALS.

PPPPPPPPPPPPPPPPP GT. 12, 1909.

1,043,867, Patented Nov. 12,1912.

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A. L. J. QUENEAU. CASTING OP METALS. APPLICATION FILED 001'. 12,1909.-

1-,043,867. Patented Nov. 12,1912.

3 SHEETS-SHEET 3.

UNITED, snares. PATENT OFFICE. I

AUGUSTIN LEON JEAN QUENEAIL OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO I WETHERILL FINISHED CASTING-S COMPANY, OF PHILADELPHIA, PENNSYLVANIA,

A CORPORATION 01 PENNSYLVANIA.

CASTING OF METALS.

Specification of Letters Patent. Patented Nov. 12, 1912} Application filed October 12. 1909. Serial No. 522,274.

- provements in Casting of Metalsyand I do hereby declare the following to be a full, clear, and exact descri tion-of the invention, such as will enable ot ers skilled in the art to which it appertains to make and use the same.

This invent-ion relates to the reproduction in metal and by a casting operation, ofm'etal articles generally, the metal article serving as'a pattern for making metal casting dies in which the casting is efiected. It is characteristic of the invention that it ermits there roduction of the metal artic e to be dupllcated, with absolute accuracy' and minuteness of detail,.without requiring the services of a pattern maker, and, if de'slred, not only in the same metal of which the original article is made, but also in metal casting dies of the same metal, so that 'both in the operation of forming the metal" casting dies and in the operation of casting the finished reproductions therein,

. the same rate of ex ansion and contraction the metal is raised into t e mold cavity from mold cavity with the casting metal.

of the metal cast below upwardly, as, for instance, in pneu-' matic casting, but broadl considered it will, of course, be understoodt at it is not limited to this particular manner of supplying the In the accompanying drawings, Figure 1 represents, partly in vertical section and partly in elevation, suitable apparatus for the practice of Iii invention and illustrates a particularly the iial stefpof casting one dies r the" reproduc tion of the miter gear shown in said figure and shown on a larger scale in Figs. 9 and 10. Fig. 2 represents, in vertical section, a detached view of the head-plate forming a part of the apparatus shown in Fig. 1. Fig.

3 represents, in vertical section, the casting made 1n the said initial stage of the operation with the miter gear embedded therein.

Fig. 4 represents, in vertical section, the

same parts shown in Fig. 3 but with certain alterations which adapt it to use in the next succeeding stageor step of the process. Fig.

5 represents, partly in vertical section and partly in elevation, the same apparatus shown inFig. 1 but with the employment, as the head-plate of the mold, of the block and its associated miter gear shown in Fig. 4. Fig. 6 represents, invertical section, the

casting produced in the step or stage of the process indicated'in Fig. 5. Fig. 7 represents a like view to Fig. 6, but with the cast ing somewhat modified to permit it to communicate with the gate of the mold. Fig. 8 represents a'view similar to Figs. 1 and 2, showing the final step or stage of the process, wherein the castings made in the operation shown in Figs. 1 and 5 and constituting the metal casting dies are employed to produce' the final reproduction.

'by it may be conveniently attached to a corresponding screw-threaded projection of any suitable pneumatic casting apparatus of well-known type, 'in such manner that the gate 12of the mold shall be air tight con: .tact and alinement with the casting nozzle or dip pipe of the pneumatic casting apparatus.- The ate 12'is preferably 0 tapering form an .leads into a chamber 13 cre- I ated by a cayity in a metal block 14, secured in any suitable manner to thebase-plate 11.

At its upper portion, the block 14 provided -with an annular shoulder 15, in which is seated a. headlate 16. Both the block 14, which forms t e side .walls of theqmold, and the head-plate 16 which forms the cover, are preferably made of cast iron.

The head-plate has a central bore, as indicated at 17 in Fig. 2, to receive a spindle 18 that is supported from the top of the headplate by means of a collar 19 into which a cross-pm 20, carried by the upper part of the spindle is fitted. The collar 19 rests I upon the upper surface of the head-plate and supports the spindle 18 whose lower end 21 projects within the 'mold cavity 13. The head-plate is further provided with the countersunk recesses 22, 23 (see Fig. '2),

'. in order-to receive and seat the miter gear,

as shown in Fig.1, said miter gear fitting snugly upon the projection 21,. so as to be sustained in place. When the miter gear pattern is in the position indicated, it 13 partly contained within the head plate and partly extends into the mold," and the pro'-,; jection 21 extends still farther into jthe mold-i Y 3 "'i. When the parts are in the'position shown Fig. 1, the apparatus is ready for, the: molding of one of themold sectionsjor metal casting dies. The molten metal from which the casting the is to be formed is thereupon raised into the mold throughthe gate 12' until the mold cavity or chamber 13 is filled. The upward movement of the entering metal {is resisted,'during this filling operation, and the head-plate-is held .on its seat in the block 14;, by means of a locking device 26 =that rcferably takes the form of a plate adapte to be slid laterally into notches 27 made in the upright post 28, and this locking plate-is provided centrally with a screw-threaded aperture within which fits a corresponding screw-threaded pressure pin 41: having an actuating lever 42, as

' shown. The pressure pin 41 is located directly above the collar19. and spindle18, and firmly holds the head-plate, the collar and the spindle against vertical movement while the mold cavity 13 is filling. When the molten mass has set,-the pressure of the screw-threaded pin 41 upon thespindle 18 is released and the locking plate and head- .plate are removed, which will leave the miter gear adhering to the molded block 29, in thejmanner shown in Fig.6. The

block is then taken out of the mold and the sprue 30 is cut off, after which the block 1 is rabbeted at its upper part, as shown at 31 in Fig. 4. The lower part of the block is fthen bored out, as shown at 32 to form a continuation of the recess], that had been formed in the block by the prdjecti 21 i-he spindle 18.

.When the block 29,1 carrying the," miter removed, is then placed in anwinverted posi- "s has been treated, in the mannerindi Fig. 4, it is ready to' serve as a head-plate inthe next succeedin operation of forming the second casting is or mold section for the article to be reproduced. This second casting die or 1 old section is cast, like the first casting ie or mold section, in the cavity 13, but, as illustrated 1n Fig. 5, there is substituted for the headplate 16, the casting die 29. In order to support the casting die '29, which is of slightly less diameter than the mold-cavity, a strip 33 is inserted, whichrests u on the shoulder 15 of the mold wall 14, in such way as to engage. the rabbet 31 of the block 29, as shown in Fig. 5/ The spindle 18 is then passed downward through, the block 29 gear, and is againsupported by means of its cross-pm '20 from the collar '19 which, in

:this case, rests on top of the block 29.. The locking plate 26 is then placed inposition as before, and the screw-threaded pin 41 is caused to bear against the spindle 18, so as to resist the u ward pressure of the molten metal when t e latter is introduced into i the'mold cavity.

90. ilh wlll be apparent that when the parts arearranged as shown in Fig. 5, the resulting mold block will have the form shown in Fig, 6, z. 6., the metal will flow over and cover the surfaces of'the miter gear employed as the pattern and that are still left uncovered and will conform to the lower surface of the molded block 29 and its adjacent parts. The. second molded block, which is indicated in Fig. 6 by the numeral .351 is thereupon bored out at 35, after it has vbeen taken out of the mold and then has appearance shown in Fig. 7. I The result of the operations describe is the formation of the two molded bl metal casting dies 29, 34 which have herein the. intaglio impression ofthe employed as the pattern. Whe' are placed together, the cavit i ormed be-. tween them Wlll conform ex-a ly in size and shape to the contour of th 7 2. attern and will represent it with absoluteficcuracy and minutenessof detail. Inflirder to use these metal casting die "sectid ns for the reproduction of copies oft/He original miter gear employed as a pattern, the said casting die sections are used fin the original apparatus in the manner jndicated in Fig. '8, the .castmg dle section34that was molded last being placed *within the mold cavity .13 in such manner that the bore or passage 35 will register/with the gate 12. The block 29' that as first molded, and from which the mitergear employed as a pattern has been tion. over the block 34, after which the" spindle 18'is'i passed downward into the rela-' -'t1vely smallft cavity that exists between the,

casting die sections 29 and 34, said spindle bemg supported by the pin 20'as before. 13

80 and through the hollow interior of the miter i The locking plate 26 is then placed in position and the screw pin 41 is turned so as to hold the two casting die sections together during the entrance of the molten metal,

which latter is forced upwardly into the small mold cavity through the gate 12. The metal entirely fills this cavity and flows into the indentations formed in the die cast- 1n sections by the gear teeth of the pattern. VVlmere theobject to be reproduced is a miter gear, as shown, the molten metal will surwhere the casting die sections are made of the same metal as the object to be molded, the several members of the assemblage contract and expand at the same rate thereby correspondingly lessening any liability to cracking and checking. a 1

After the molded miter gear or other metallic object has been removed from the mold, the sprue 36 (Fig. 8), together with the solid part carried by the hub and-molded in the passage or bore 35 of the block 34, are

out off, whereby the reproduction willhave,v

the configuration of the ori 'nal miter gear shown in Figs. 9 and 10. he gear as thus reproduced will have a bore or' passage 37 extending completely through the same, owing to t e fact that the solid part of the mass has, been cut away as above explained. This hollow interior of the gear is formed by the casting of the metal about the continuation 21 of the spindle 18, as will be understood.

When the die castin sections 29, 34, have been once produced, t ey are available for producing any number of copies of the original miter ear or other metal pattern, by assembllng t em in the position indicated 1n 8, and casting therein as hereinbefore escribed. The die casting sections 29 and 34 require absolutely no cutting or machining at their molding surfaces, and can therefore be produced very cheapl and uickly in the manner described and with t e assurance that they will accurately reproduce the exact configuration of the original article.

In the drawings, for simplicity of illustration, I have shown the employment of blita 'singleunit as the pattern article from which the casting diesare produced; but it will be evident that the housing 14 may, if desired, receive any suitable number of pattern articles similarly located therein on like supporting spindles, whereby from such multiple units the casting dies produced will tion.

Having thus described my invention, what I claim is 1. The method of reproducing metal articles by casting, which consists in making sec-, tional die castings in intaglio of the article, employing the article to be reproduced .as a pattern, removing the attern article, assembling the sections and casting the reprohave a correspondingcapacity of reproducQ the reproduced article therein; substantially as described. g

2. The method of reproducing'metal arti cles by casting, which consists in making sectional die castings in intaglio of the same metal of which the article to be reproduced is composed, employing the article to be reproduced as a pattern, removing the pattern article, assemblingthe sectionsand casting the reproduced article therein; substantially as described.

3. The method of manufacturing metal mold sections for the reproductionof metal articles by casting, which consists in casting molten metal in a suitable mold about a portion of the article-tobe reproduced so as to embed such portion inthe cast block, re-

moving the block from the mold with the pattern partially embedded therein, and using said block in connection with the mold to cast a second block of metal about the exposed ortion of the pattern article; substantia ly as described 4. The method of manufacturing metal molds for there roduction of metal articles by casting, whic consists in supportin the metal article to be reproduced from the ead late of a suitable mold in such manner that it will project partially into the mold cavity, admitting molten metal into the mold cavity to form a cast block therem llj Whwl'l the pattern article is partially embedded, .removlng said block from the mold." with the pattern article so embedded, bgring out the center of the block, supporting the block in inverted position as a head plate for the mold, with a spindle extending into the bore therein and into pattern article, then casting molten metal about'that portion of the pattern article which} remains exposed, and finally boring the ,second block to form a passage therem communicating with the gate of the mold; substantially as described.

5. In apparatus for manufacturing metal molds, for the reproduction of metal artlcles, a mold having a base dplate provided with a gate, a head plate,-'an means to support the pattern artlcle from the head plate so that it projects into the mold cavity;

substantially as described.

6. In apparatus for manufacturing metal molds, forthe'reproduction of metal articles, a mold,-a head plate for the mold having a cut away portion, in which the pattern article is partially received, and means to Oopceefiiin' in Letters Patent No, 1,043,867.

"support the pattern article from said molds-for the reproduction of metal artieles the combination with a mold having an inlet gate formolten metal, of a head plate orcover, and a spindle extend" through the head plate or cover into the mo d and arranged to support the pattern article "in the mold cavity; substantially as described.

8. In apparatus for manufacturing-metal molds for the reproduction of metal articles, the combination with a mold, of a head plate, a spindle ass'in'g throu h the head plate into the mol and provid with means to support the pattern article within the lat ter, a collar fixed to the spindle exteriorly of the mold and resting on the head plate, and

the Patent Oflice,

I [span] a locking-device above-the collar to resist upward movement off-the head plate and spindle; substantially as described.

9. In apparatus for manufacturing metal molds for the reproduction of metal articles, the combination with a mold, bf a head plate having a recess in its under surface to receive the pattern article, and a spindle passing through-the head plate and arranged to support the pattern article within said recess, said spindle havin a continuation tially as described.

In testimon whereof I aflix inpresence 0 two witnesses.

AUGUSTIN LEON JEAN QUENEAU; Witnesses:

JOHN C. Plnmm,

LAURA B.

sylvania, for an improvement in Casting-of Metals, an error appears in-the printed specification requirihg correction as followsz Page 3, line 75, strike out th a article and syllables the repro-; and that the said Letters Patent should beread Signed and sealed this 10th day of December, A. 11, 1912.

-fecmnnmes, H ofPa-ten te,

upon which the'pattern article fits; substane my signature,

It is hereby certified that in Letters Patent No. 1,043,867, granted November 1 2, I: "1912, upon the application of Augustin Leon ean Queneali, of Philadelphia, Penn with this correction therein that the same may conform to the record of the case in I Oopceefiiin' in Letters Patent No, 1,043,867.

"support the pattern article from said molds-for the reproduction of metal artieles the combination with a mold having an inlet gate formolten metal, of a head plate orcover, and a spindle extend" through the head plate or cover into the mo d and arranged to support the pattern article "in the mold cavity; substantially as described.

8. In apparatus for manufacturing-metal molds for the reproduction of metal articles, the combination with a mold, of a head plate, a spindle ass'in'g throu h the head plate into the mol and provid with means to support the pattern article within the lat ter, a collar fixed to the spindle exteriorly of the mold and resting on the head plate, and

the Patent Oflice,

I [span] a locking-device above-the collar to resist upward movement off-the head plate and spindle; substantially as described.

9. In apparatus for manufacturing metal molds for the reproduction of metal articles, the combination with a mold, bf a head plate having a recess in its under surface to receive the pattern article, and a spindle passing through-the head plate and arranged to support the pattern article within said recess, said spindle havin a continuation tially as described.

In testimon whereof I aflix inpresence 0 two witnesses.

AUGUSTIN LEON JEAN QUENEAU; Witnesses:

JOHN C. Plnmm,

LAURA B.

sylvania, for an improvement in Casting-of Metals, an error appears in-the printed specification requirihg correction as followsz Page 3, line 75, strike out th a article and syllables the repro-; and that the said Letters Patent should beread Signed and sealed this 10th day of December, A. 11, 1912.

-fecmnnmes, H ofPa-ten te,

upon which the'pattern article fits; substane my signature,

It is hereby certified that in Letters Patent No. 1,043,867, granted November 1 2, I: "1912, upon the application of Augustin Leon ean Queneali, of Philadelphia, Penn with this correction therein that the same may conform to the record of the case in I 

